Water-based adhesive that creates an air-tight seal on duct seams and joints. By eliminating air leakage, sealant helps increase the overall efficiency of the duct system and helps conserve energy. For use on: metal ducts, flexible ducts, and ductboard. 1/2 gallon pail.

Designed to be installed on any add on furnace. Specifically, it covers the blowers and allows for connection to the existing HVAC return duct work or to newly installed ducting. It comes with an integrated slot for a 16" x 20" air filter. Made of durable Galvanized steel. For units: 1300, 1537G, 1602, 1802, 24AF, 1400, 1500, 1557M, 1602M, 24A, and 30A.